I thought the same thing when I first bought it, but the gentleman at the gunstore was telling me that the Centennial Edition was a limited run from 1909 to 1912. The primary difference that I've noticed is some of the stamping on the receiver and the British coin that is set in the stock.
Item Name: FS/FT Lee-Enfield No.3 Mark 4 SMLE Centennial Edition
Location: Gainesville
Zip Code: 30504
Item is for: Sale or Trade
Sale Price: 450
Trade Value or Items Looking For: 600
Caliber: .303 British
Willing to Ship: No
Bill of Sale Required?: No
Item Description: Up for sale or...
I'm interested in the Glock 17L. Email me at mattdavis.bncollege@gmail.com. I have several different guns I could offer as trade. I'm located in Gainesville
Item Name: FS/FT Glock 42 Gen 4 LNIB
Location: Gainesville
Zip Code: 30504
Item is for: Sale or Trade
Sale Price: 400
Trade Value or Items Looking For: 450-500
Caliber: 380 ACP
Willing to Ship: No
Bill of Sale Required?: Yes
Billing Information: License Number
Item Description: Up for...
I can trade you the 42 with a couple of boxes of Hornady and a Bianchi leather IWB holster. It has extended +1 base plates on both magazines. Vickers Tactical Magazine Release.
I have a Like New Glock 21 Gen 4 and a Like New Glock 42. I'm located in Gainesville. Email me at mattdavis.bncollege@gmail.com. I'd definitely like to trade with you.