I don't think the one on the right is a Weeden.
I think the one on the right is a Fleischmann vertical I 'think' they were designated 105.
Most likely a Fleischmann 105/1 a slightly larger version of the 105.
Though not a Weeden, it is still a nice and desirable engine to have .... I know I like mine just fine!
Thanks for the info I was sure