They look like well made frames but neither are Colnagos.
My 1983 Colnago Super with all the traditional symptoms of frames from the same era as the OP's. Also I didn't get into depth on seat stay tops because Colnago used a number of different styles on those frames:
Rear stays to dropout treatment
My Colnago Technos with the same rear stays to dropout treatment as on my Super.
This Technos has the same rounded seat stay tops as the OP's but with a logo an the fancy lugs. Note the fluted/crimped oversize top tub with a bulge in the middle.
There is a slim possibility that the frames are Colnago Sport which were farmed out products.
EDIT (except for the crimped tubes per @
CliffordK post)
verktyg
