Ahh so you bought the Victa Alt model,Interesting,I had one of these in an old collection a while back.Not much is known about this model,Some will tell you they are a HG Palmer,running the Model 5 engine,and maybee they were,Mine was unbadged when I had it,Although it did have an original rear flap.(Note the 2 rear mount holes)I know of 2 of these models which actually have the victa badge still on them.1 is original another a restore,The badge is different to that of the model 2/3 rotos and early 60s steel based utilities.They came in 2 different handle bar versions,Snap locks for both,yours has the lower C bar where as the other is 2 piece lower 1 piece upper.This base also utilised the villiers 7f in "manual"form,from about 1961 on and was sold under the "HG Palmer" Depratment store name.Welded axles make it a pain for restore,but I just ground mine and pinned them.Wheels are correct as is the snorkel and choke.Believe it or not but the front and rear sheet guards covering the height adjust points are genuine even though they look like they are back yard made.Everything else seems correct and complete other than the rear guard and badge.As for value you piad what they seem to be worth,Ive actually seen them pass unsold,Mainly I think because nothing is known of them and they look made up,Either way you got a good buy with barely any parts to find:)And Just in case you didnt know..this victa is NOT the "round"3rd series model 5 base you may have been refering to..Actually this doesnt come in any VICTA class that I know of:)Anyways Good buy and I like this little known model,It will do up nice and add a bit of diversity to your Victa collection...Awesome!!!!
Oh and one more thing....You said you like "60s to 70s but you bought this thing"This actually fits in nicely at the low 60s end of your scale 61-63 id put it,Please correct me if im wrong:)