1933 coils

I am still trying to find my spark problem in my 1933 1247. One possiblity may be the 76 year old coils. I tested them with a ohm meter and got .9 on both primarys and 2.7 and 2.4 on the secondarys. However I cant find any info. on what they should test at. The coils are Delco Remy No. 537-E oaks hershey co incidental switch. Also does anyone know what type of new coil would be a good replacement ? Thanks Doug Vogel