Count von Schimmelhorn and the Time-Pony

From Author Wars - https://authorwars.com/books/count-von-schimmelhorn-and-the-time-pony-192496.html

Overview:

Title: Count von Schimmelhorn and the Time-Pony
Author: R. Bretnor
Year: 1974
Type: Short Fiction

Editions/Publications:

Unknown. The Magazine of Fantasy and Science Fiction, October 1974 (Unknown, R. Bretnor, Mercury Press, Inc., $1.00, 212 pages, digest, MAGAZINE)