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Hello Callahoony Uno,
Interesting find; thank you for sharing it with the forum!
Benotto cycles have been produced in both Italy & Mexico.
Suspect the red and green seat tube transfer will read "MADE IN MEXICO."
Was at first thinking Italy until I noticed the Dia-Compe Gran Compe handlebar stem. While rear mech an obvious replacement thought perhaps the Sakae Ringyo Silstar chainset would have been as well. Now guess it to be original.
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Frame -
constructed with Agrati lugset of "ROMA" pattern nr. 000.8020/U
[the Agrati "ROMA" seat lug was offered both plain, as on your bicycle, and in the Malaguti style as shown in above image]
dropouts Agrati stamped sheet with gear hanger
fork ends Agrati nr. 000.8010
bottom bracket shell is Agrati nr. 000.8507
chainstay stop appears Campag nr. 621
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Fittings -
wheels and rear mech are replacements below quality of bicycle
original rear mech would have been Campag Valentino
original wheels would have had alloy QR hubs
are you able to read marking on front of saddle pillar? Teihei? NITOR?
pillar size will yield indication of frame tubing quality. would not expect a size larger than 26.4mm. a 26.2mm or 26.4mm size would suggest tubing to be of a quality plain gauge nature.
saddle may be Unicamex, there will be marking moulded into underside
headset appears to be Agrati pattern nr. 000.4001
tip regarding cycle's Sakae Ringyo Silstar chainset -
it takes the odd three degree taper spindle so if spindle is worn out make sure that replacement is of the three degree variety. may require a bit of searching. as long as number marked on replacement matches that of original you should be fine.
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machine appears to be a one up from the bottom sort of model which likely dates from the early to mid-1970's.
you may be able to get a specific date from the markings on the backside of the crank arms:
http://www.vintage-trek.com/component_dates.htm#SR
value modest but will leave appraisal to the experts.
hope this assists you a bit...
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