strong sans serif - need ID

hi all, have been admiring this one for a while. any takers?

seen here:



It's Akzidenz Grotesk Bold Condensed.

Even says so here:

the capital R is different in every version of akzidenz bold condensed i have searched - i cant seem to find a version with the same straight (diagonal descending) arm. can you help me find this verison?? appreciated!