vintage playing cards, Surge dairy milking machines illustrated advertising

Vintage playing cards advertising 'catalog', illustrating Surge dairy equipment, milking machines, bulk tanks etc.. We didn't see a date on these, and it's hard for me to guess as we've only used DeLaval equipment.

One deck is full (that's the blue cards), one deck mostly complete (that's the orange cards). And all of these have been used, of course - though they look pretty nice overall.