I'm very pleased to see an active thread on the Sportsman series! You seem quite well informed on these Goony! I'd love to compare notes although I don't want to hijack your thread.
If you don't mind me tooting my own horn a little I think I've gathered a nice little collection of...Sportsmans? Sportsmen? and related H&Rs over the past few years.
https://i.imgur.com/E2CGT2u.jpg
196 Eureka Sportsman
https://i.imgur.com/87EsPF7.jpg
777 Ultra Sportsman
https://i.imgur.com/AtCJ1kE.jpg
Very early double action Sportsman serial #375
https://i.imgur.com/wh7UkFQ.jpg
Sorry for the poor photography, someday I'll buy a lightbox!