I have found a 1954 paper in J. Am. Chem. Soc. which gives various temperatures in degrees but does not specify units.
Titanium reacts appreciably with fluorine above 150°…
If I were feeling charitable, I might excuse the "units are for wimps" attitude as reflecting a commonly understood standard for that publication at that time. Perhaps my searching was poor, but I couldn't find an ACS standard or style guide for the 1950s era.
Given the location and time, I would guess that the temperatures are in degrees Fahrenheit, but I can't be sure they're not Celsius. Is there any reasonable way to determine which units the authors were actually using?
I don't have access to the full paper, just the first page at the link below.
Haendler et al., J. Am. Chem. Soc., 1954, 76 (8), pp 2177–2178