I've been using this to check small dates. http://www.lincolncentresource.com/smalldates/1960smalldate.html "0" looks more like an "o". The "1" also looks a little below the "9". I'd say it's a large date, but I'd let the pros weigh in. As for D/D... no idea
Doesn't look like a small date. The tails on the 6 and 9 seem to be too extended. On the small date they are quite stubby. Furry Frogs small date is not a Denver but it's the easiest way to see what a small date should look like.