Looked up that producer and mold and it does look like it. Although the lid looks a little different on the top. But that could have been replaced over the years I guess. Thank you so much for your help. I’d be interested in seeing what it’s value would be, even though I have no plans to sell it.
Mold 1120 is the 1,0 L version and mold 1020 is the 1,5 L version. A lid with a ceramic insert was less expensive than pewter. Today, collectors generally prefer the ceramic insert lids. The mold 1120 stein with a pewter lid in mint condition is listed at $60-80 in The Beer Stein Library. On ebay, it would g0 at the low end of the range or less.