I was fortunate in finding your bowl. It is steel possible plated with nickel.
Many of the prices I found online were about $15. I did find several at around $20.
If you wish to sell it, put a price of $25 on it since you can trace the ownership. You can always come down.
Online auctions like eBay generally bring wholesale selling prices.
If you would like to sell close to estimated retail, some ideas are:
The internet has your largest audience of buyers. Place small ads on these sites or set up your own small store on these sites.
These sites carry antique as well as vintage items.
Accept PayPal only.
Etsy.com - small fees - 20 cents to list plus 3.5% final price.
Or your nearest CraigsList.com where you can list items for free. Accept cash only.
In general, a private seller to a dealer, via consignment or at auction can expect 30-50% of estimated retail value.
Insurance replacement values are usually about 10% more than retail values.
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