Please help me out

Can some one give me the age of this Bradford White Hydrojet Water Heater. Here is the skivvy: Model # MI40T5LN10, Serial # MD4729044, Gas 40 Gallon
Thank you in advance,

I get April of 1976 or 1996.

April 1995

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This print sheet will help you to ref. any age of water heaters (all brands)

April 1995 it is.