National Geographic's Collectors Corner

Collaborative site for collectors, dealers, & anyone interested in our history.

Mark Van Winkle's Discussions (37)

Discussions Replied To (36) Replies Latest Activity

"Mel, I agree with almost all your criteria for each grade level. The only disagreeme…"

Mark Van Winkle replied Feb 4 to Proposed NGM grading standard:

3 Feb 7
Reply by George Thomas Wilson

"I'm unclear what it means also. My copy looks like the one you have posted. "

Mark Van Winkle replied Apr 12, 2020 to Dec 1976 NGM printing anomoly/error?

8 Apr 13, 2020
Reply by Scott T. Shier

"I found it (barely), but what does it represent? "

Mark Van Winkle replied Sep 9, 2019 to Total Number of Reprints Published by the National Geographic Society (NGS)

11 Sep 11, 2019
Reply by Douglas Groenendijk

"George, Thanks so much. I think I'll proceed then with the purchase. Mark"

Mark Van Winkle replied Aug 25, 2019 to 1964 Reprints Question

2 Aug 25, 2019
Reply by Mark Van Winkle

"George / Mel, Thanks so much for the information. That's really helpful. Mark"

Mark Van Winkle replied Jul 19, 2019 to Maps 1914-2002

7 Jul 19, 2019
Reply by Mark Van Winkle

"Lynn, I finally got around to checking my issues, and I already have these maps and…"

Mark Van Winkle replied Jul 17, 2019 to Maps 1914-2002

7 Jul 19, 2019
Reply by Mark Van Winkle

"Lynn, Do you have a list of which maps you have available that are pre-1920 and how…"

Mark Van Winkle replied Jul 13, 2019 to Maps 1914-2002

7 Jul 19, 2019
Reply by Mark Van Winkle

"Scott, Are you certain the 1888-1907 issues are originals and not reprints? Mark "

Mark Van Winkle replied May 19, 2019 to National Geographic collection from an estate for sale

5 Jun 8, 2019
Reply by K. Scott Moore

"I use an old price list from 1978 that Don Smith sent out. It's really helpful. Once…"

Mark Van Winkle replied Apr 24, 2019 to Map/Supplement Register

6 Jun 10, 2019
Reply by Rachel

"Thomas, I would definitely be interested in the early single issues you have. I can…"

Mark Van Winkle replied Mar 21, 2019 to selling original issues of first year of NG magazine and rare NG books. interest?

10 Nov 25, 2019
Reply by Thomas Jovin



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