It’s a comal! These originated in Meso-America and can be used in a variety of ways. I prefer using mine when broiling vegetables for salsa. Here is an example of a modern comal: https://www.amazon.com/dp/B00164VNUA/ref=cm_sw_r_cp_api_glt_fabc_04XXZ1RAJEAGW6EYA9YW Cheers!
It seems to have been made by Sears, and although it can be hard to find exact model number matches in a search, these are similar, a little earlier, also are "Prosperity". Yours is probably late 40s. I wouldn't expect to get a whole lot, but I'd think if it's fully functional and cleans up well, you could probably get at least $200-$300? Let the buyer fix the enamel or any other things it may need. That's just a wild guess, and will really depend on your area, and your PICS!Make it look super cute & stage it with a little vintage pot/bowl etc, & colorful towel hanging on the front. That's what really sells it :)
https://offerup.com/item/detail/409115864/
https://www.goantiques.com/sears-prosperity-electric-1412293
Unfortunately they may be discontinued, but I'd try to find a "Original Munsey Toaster". They are a very simple durable design.
That is an oyster/clam shucking tool similar to this one on Amazon. https://us.amazon.com/International-3570-Shucker-Stainless-Hardwood/dp/B000SZEDG4
Sunbeam are neat looking! I’m wary of old electrical stuff because I have no clue how to fix it so I’m of no help in that regard.
I can recommend the newish waffle iron I have for the last 7-8 years. I received it as a gift and honestly thought it was going to be junk but it’s been reliably cranking them out 1-2 x a month. The recipe booklet has a good recipe too.
BELLA Classic Rotating Non-Stick Belgian Waffle Maker, Perfect 1" Thick Waffles, PFOA Free Non Stick Coating & Removeable Drip Tray for Easy Clean Up, Browning Control, Stainless Steel https://www.amazon.com/dp/B00ESDVSTC/ref=cm_sw_r_cp_api_i_42A1Q0CA0E2F1YM56T2H?_encoding=UTF8&psc=1
I could only find new ones without the duck, and a chicken one on eBay.
Must be. Google just wants to bring up polycarbonate pans when I search for it though, not super helpful. It reminds me of the cast iron plates some steak houses use, but longer: https://www.amazon.com/dp/B0001Z8P2O/ref=cm_sw_r_cp_apa_glc_fabc_NHW011RZHVR5SJ2XNJNA