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Robert Zelenak's Discussions (45)

Discussions Replied To (33) Replies Latest Activity

"Thank you again for wealth of knowledge, Mel. I'd say the 20 year set is in near min…"

Robert Zelenak replied Jan 15 to Complete set of National Geographic - Value?

3 Jan 15
Reply by Melvin L. De Vilbiss

"Lynn,That reminds me. Do you still have these 3 maps?Mar. 1909Apr. 1923May 1933rjzel…"

Robert Zelenak replied May 25, 2017 to Two Rare April 1913 Machu Picchu issues for sale

9 Oct 9, 2017
Reply by Lynn Olson

"Wow! Thanks Phil! "

Robert Zelenak replied Sep 21, 2016 to Checkoff List of All National Geographic Maps and Supplements. Updated to July 2017

19 Sep 30, 2017
Reply by Scott T. Shier

"That is the Buxbaum definition. Sir, I have every issue. Yes, not all originals But,…"

Robert Zelenak replied Sep 19, 2016 to Complete National Geographic set.

7 Sep 19, 2016
Reply by David Levey

"Sounds about right. I have that edition of his book. I ask because I have a complete…"

Robert Zelenak replied Sep 18, 2016 to Complete National Geographic set.

7 Sep 19, 2016
Reply by David Levey

"I'm sure someone on this site knows!"

Robert Zelenak replied Aug 9, 2016 to Complete National Geographic set.

7 Sep 19, 2016
Reply by David Levey

"I thought you have a complete set. "

Robert Zelenak replied Jun 9, 2016 to Question about NGM April 1913

5 Jun 9, 2016
Reply by Robert Zelenak

"Also a follow up question. Is it known how many complete collections of the National…"

Robert Zelenak replied Jun 9, 2016 to Question about NGM April 1913

5 Jun 9, 2016
Reply by Robert Zelenak

"Thanks Mel! This is a great guide you wrote!"

Robert Zelenak replied Jun 9, 2016 to Question about NGM April 1913

5 Jun 9, 2016
Reply by Robert Zelenak

"Thanks Phil "

Robert Zelenak replied Jun 3, 2016 to Looking for two 1908 issues

2 Jun 3, 2016
Reply by Robert Zelenak

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