The L swiss L is correct. I think some member here started the myth of TswissT 036's there may have be 1 or 2 but they are an anomaly
Check out here http://www.panerai.com/en/collections/special-editions/1999/luminor-marina-militare---44mm_pam00036.html
Here's a gens Rear
So I'm going with its a rep. But it may be my bad eyes.
That certificate is silly as there is no 1950 luminor, there's only a 127 that has 1950 units. The 036 is a special edition from 1999 with 200 units