Many thanks to Martin Straube for forwarding a pdf. 

On Tue, May 19, 2020 at 3:48 PM Péter-Dániel Szántó <szantopeterdaniel@gmail.com> wrote:
Dear colleagues,

Would anyone have a pdf of the article referred to as 

Regamey, Constantin (Konstanty). "Lexicological Gleanings from theKarandavyuha." Indian Linguistics, Chatterji Jubilee Volume 16 (1955):1-11.

I'd be very grateful. 

Best wishes,
Peter Szanto