Gallery Bookshop Index Queries Contact home

The Philadelphia Print Shop, Ltd.Queries

Question about an antique print, map
or related book you own?

[ Original or Reproduction? | Information? | Sell It? | Value? ]


Most questions we get concern items owned by the questioner. We are happy to help where we can. However, we are a business with a small staff and there are limits, both practical and professional, as to the assistance we can offer. Please follow the links below to see if you can find the answer to your question before contacting us directly.


Original or Reproduction?

Telling a reproduction from an original can sometimes be very easy, and other times quite difficult. Below are some tests you can make which might tell you what you have.

Printing process

The most definitive method of determining whether a print is an original or a reproduction is by examination of its production process. All reproductions are made by a different process than originals; reproductions are photomechanically produced and originals are not. This difference in process can usually be spotted by an expert and in some cases is quite obvious.


As a general rule, almost all prints and maps printed before 1800 are on laid paper and almost all prints and maps printed after 1800 are on wove paper.


  • Look for any printed information which indicates the print is a reproduction, e.g. "reproduced from" or a copyright notice, etc.

  • The best way to tell what you have is to try to find a reference book which features the map or print you are trying to research. This can be a collection listing, an exhibition catalogue, or a or catalogue raisonné. These references often list details about the prints or maps and you can compare these to your print or map. Among the details to check are title, measurements and the exact wording of any imprint information. Note that old prints do vary a bit in size, but the measurements should be within about 1/4" of the recorded size.

    Note that none of these tests are certain, for there are exceptions to all of them. Also, even if your print passes these tests this doesn't mean that it is original, though failure of any indicates it probably is a reproduction. Ultimately the issue must be decided by knowing what process the print should be and knowing what the paper should be like. This often takes an expert to determine for certain.

    For information on the different processes and terms used above, visit the general print reference section of our on-line library.


    Want information?

    We love antique prints and maps and are delighted to share our enthusiasm and knowledge with those interested in these wonderful artifacts. However, as we are a small shop trying to stay in business, there are professional and practical limits on how much time we can spend offering free advice. Therefore, we have tried to set up as much on-line help as possible for those seeking information about antique prints, maps and related books. If you follow the links below, you may find the answers to your questions, so please try this before contacting us directly.

    Reference Library
    Return to our on-line reference library which contains much information on antique prints and maps and is available for everyone's use.

    We have tried to include useful information about the items listed in our on-line gallery. If you can find similar items to those you have questions about, you might find your answers here.

    Our links page lists many sites filled with information on antique prints, maps and related books

    If you have looked on-line and still cannot find the answers you seek, you are welcome to contact us directly. We will answer every email query we get to the extent we can within professional limits. As we get hundreds of questions a month, it may take some time before we can respond.

    Free help
    We are happy to provide, at no charge, any information which we can give you "off-the-cuff," that is, without having to do any research. And as noted below, we will not give out values without charging for an appraisal.

    If we have to do any research to provide an answer, we must charge for our time at a rate of $225 per hour. We are a small business and cannot afford to spend the time needed to do research without charging.

    You may send us an e-mail enquiry or contact us by phone, fax or mail at the numbers or address below. Please be as detailed and clear as you can when asking your question to avoid our having to write back for further information and so that we can answer your question to the point. Note: do not send digital images via e-mail unless requested to do so.


    Want to sell your print/map/book?

    We are at all times interested in purchasing quality antique prints, maps and related books. We will purchase individual items or collections.

    In the nearly two decades we have been in business, we have established an excellent reputation amongst collectors, curators, librarians, and scholars, and we strive to maintain that reputation in every transaction we undertake. When you deal with The Philadelphia Print Shop you get

    If you have an item or items to sell, please feel free to contact us. We cannot make an offer until we see the item(s) in person, but if we see a photograph we can usually give at least a contingent, ball-park figure. Note: do not send digital images via e-mail unless requested to do so.


    Want to know what your print/map/book is worth?

    Experts featured on ARS We are professional appraisers and therefore it is neither ethical nor fair to our paying clients to give out valuations with no charge.

    We are proud to have appeared regularly as appraisers of prints and maps for 10 years on the Antiques Roadshow, but it is only at those events that we offer free appraisals. We are happy to offer appraisals at our shop, through the mail, or via email, but we must charge for these.

    If you would like further information on the Antiques Roadshow, click on the familiar trunk to the right.

    If you are seeking a value for your print/map/book, there are several ways in which you can proceed:

    Look on-line
    If you browse our on-line gallery, you may be able to find similar items to that you are seeking a value for. Though issues of state, edition, condition, etc. do affect values, this method can provide a general ball-park value for the item in question.

    Reference books
    There are quite a number of price guides for antique prints, maps and related books. These are based on dealer and auction prices. A good city or university library is likely to have one or two of these. Doing your own research might provide the information you are seeking.

    We are happy to provide you with an appraisal of the item in question. We offer both formal appraisals at $225 per hour, one hour minimum; or less formal, "professional opinions of value" (e-mail appraisals) for $45. Please visit our appraisal page for more information.


    To contact us; call, write, fax or e-mail to:

    PPS Logo The Philadelphia Print Shop, Ltd.
    8441 Germantown Avenue
    Philadelphia, PA 19118 USA
    (215) 242-4750 [Phone]
    (215) 242-6977 [Fax]
    PhilaPrint@PhilaPrintShop.comMail Box

    ©The Philadelphia Print Shop, Ltd., 2017