Help to identify a Tierney CX Frame

[Marteop3c]

Hello, I recently purchased a Tierney CX frame and would like to gather some additional details.


What I know:

• Frame height: 53.5 cm (mid-to-mid)
• Frame weight: 2.7 kg
• Cyclocross design

What I suspect:

• Likely made of Reynolds 531 tubing or possibly 501
• Manufactured in the early '80s

Does anyone have more details to add?

Thank you, Marten


Pls forgiv
T

 

[Marteop3c]

A better picture of the drop outs.

 

[Frankenorange]

With mudguard eyes and bottle bosses it is more touring than cx which might help getting info off the internet.