When was the RSA 64-bit key introduced into internet encryption? When (if ever) was a key length of 64 bits used in "internet encryption" and when was that "cryptographic standard" first introduced?

Following up, when did "internet encryption" key lengths change to 128-bits, then to 256-bits, 512-bits and so on up to 2048-bits? Was the same "cryptographic standard" used?
The RSA paper from 1977 recommends the following on page 9:


  We  recommend  using  100-digit  (decimal)  prime numbers p and q, so
  that n has 200 digits.


200 digits is 663 bits, which would have been pretty strong in 1977. Due to the US government instituting export controls on cryptography in the early 1990s, 512 bit RSA became widely implemented as it was the maximum allowed for export.  I can't find any examples of keys smaller than 512 bits being used in practice, other than in the RSA factoring challenge.