Maglite D Serial Number

I've recently acquired a Maglite from my Grandma. I've seen it in her house for years on top of the China cabinet, and she finally let me take it home since she thinks it's useless. The Maglite still works, it takes two C-Cell batteries, and it even has it's spare lightbulb in the cap completely untouched. But I want to know specifically how old it might be, since she says she doesn't remember buying it, and that my Grandpa actually took it from an old job he used to work at years ago.
Here's some pictures.
https://cdn.discordapp.com/attachmen...0193/image.jpg
https://cdn.discordapp.com/attachmen...8090/image.jpg
I've noticed it doesn't have that strange logo on it next to the word 'Maglite', and California is shortened to 'Calif.' on it instead of 'CA'. The serial number on the side also doesn't have any letters in it.
Does anyone have any idea exactly how old this model might be? And is it at all possible for me to find new parts for it, like a brighter lightbulb?

Check Maglite Serial Number

Maglite D Serial Number

Maglite Serial Number

The serial number is located on the flashlight's barrel near the front. Mine is a 'D' series. There is also a 'DL' series. This video for taking your Maglite apart. REFUND & RETURN POLICY. Mag Instrument, Inc. Offers a 30-day money back guarantee on any product purchased on Maglite.com. Simply return the packing slip along with the unused item in its original package for a full refund, excluding any shipping charges. 5 Best MAG-LITE LED Conversion Kit Reviews. Mag Lite LED Bulb Maglight LED Conversion Kit; Mag Lite LED Bulb Maglight LED Conversion Kit LED Replacement Bulbs LED Flashlight Bulb White 2-3 C and D Cells 2-Pack; LudoPam High Power LED Upgrade Bulb 3W DC 4-12V Replacement Part LED Conversion Kit Bulbs 3-6 Cell C&D for MagLite Flashlights Torch. Maglite D Cell O-ring, Tailcap 108-029 no D in serial number. Authorized Maglite Flashlights and Parts Distributor. Order online or call 800-624-8681.