The Bartholomew Archive at the National Library of Scotland may be able 
to help you. Chris Fleet there has been very helpful to me when I've 
done Bartholomew's related research.

https://digital.nls.uk/bartholomew/contact/index.html

Nat Case
INCase, LLC
Minneapolis, MN

On 11/19/2019 10:13 AM, Zellmer, Linda wrote:
> Hello,
>
> I have a Bartholomew map with the title Central Europe. SInce it has 
> been removed from the covers, I have no way to assign a date. It is 
> before 1991, but could be from any time between the late 60s to 1991. 
> The only clue that I have is a number in the lower left corner: 2289.
>
> I would appreciate it if those of you who have the Central Europe 
> Bartholomew map could check the maps in your collections to help me 
> date our map. Thank you. Linda Zellmer
> -- 
> Linda Zellmer
> Government Information & Data Services Librarian
> Liaison to Natural & Physical Sciences & Agriculture
> 415 Malpass Library
> Macomb, IL 61455
> [log in to unmask] <mailto:[log in to unmask]>
> Phone: 309-298-2723 <callto:309-298-2723>
> Fax: 309-298-2791 <callto:309-298-2791>