Operation R.S.V.P.

From Author Wars - https://authorwars.com/publications/operation-rsvp-262515.html

Overview:

Title: Operation R.S.V.P.
Author: H. Beam Piper
Year: 2006
Publisher: Project Gutenberg
Price:
Binding: ebook
Type: Chapter Book
Title Reference: Operation R.S.V.P.
Notes: HTML ebook. Also available as plain text (us-ascii), minus the artwork. Available for reading or download from Ebook #18261. This was produced from Amazing Stories, January 1951, & includes artwork from that issue. No credit is given for this art, but in the original magazine ISFDB lists it as being by Robert Jones. The publisher's info gives the author's name as Henry Beam Piper, but the text itself as H. Beam Piper. A note before the text says: "Produced by Greg Weeks, Sankar Viswanathan, and the Online Distributed Proofreading Team at http://www.pgdp.net".