[theplowmeister]

its a MM 2 Tower (you can see the Jack leg in pic #3 and 5)

as for the blade its an original SD (they changed the name to LD in later years. You can tell by its 3 trip springs) I think its a 7 1/2 blade.

 

[theplowmeister]

CORRECTION designation on the plow SD was in the later years changed to HD even though it had only 3 trip spring.

 

[theplowmeister]

Am I wrong... OMG I am