Tiffany Silver Flatware question

[brighteyes70s]

I was curious if, with Tiffany flatware, the casing of the M on the back of the spoon is important when concerned with dating when the piece was actually manufactured. What I mean is...as an example, i've seen a lot of the Tiffany Japanese pattern pieces marked with either a lower case or an upper case M before the other information is given. I know that with their holloware a small m and a large M can have a date range difference of quite a few years, so I was curious if this marking difference also applied to their flatware. Here's some examples...

Larger case M on back of a jelly spoon:

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Smaller case m on back of some luncheon forks:

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Info. about Holloware markings:

http://www.925-1000.com/Tiffany_Date_Code.html