Salmon cards were produced from before 1911,  and J Salmon and Co. are still in business.  These coloured cards from pictures by Blampied probably date from the 1920 - 1930 era.  These are very similar to Tuck "Oilette" cards.
SKAUT02 *2495 

Les Autelets, Sark

SKPDM02 - Salmon *2495 *2495
Natural Arch, Port du Moulin
SKMDM01 *2496 
Moie de Mouton, Sark (with Herm and Jethou in the distance)
SKLAC06 *2499 

La Coupee, Sark

SKCOA02 - Salmon 12220 12220
The Rugged Coast of Sark