Levi's 501 (66 chain, Jul 1978)

This is used 66chain model. In contrast to the 66single model, the late 66chain model is said to have no vintage color fade, but this one seems to have some vintage characteristics like a little vertical drop due to in the year 1978.

Levi's501(66chain)_front
The hem twist is small compared to 66single.
Levi's501(66chain)_back
Levi's501(66chain)_paper patch

paper patch

The paper patches are indistinguishable from the 66single's one and redline's one. A perforation of the tear-off tag remains on the right side.
Levi's501(66chain)_inner tag

inner tag

It's hard to tell from the photo, but you can see the single-digit number on the shrinkage ratio faintly, so it's not redline model (10% shrinkage) but 66chain model.
Levi's501(66chain)_inner tag

inner tag

The numbers on the third line from the top are "7, 8 and 6", indicating that it was made at the factory on July 6, 1978. 
Levi's501(66chain)_back pocket

back pocket

Near-square-shaped back pocket. The arcuate stitch is relatively well-balanced on the left and right sides and has a shallow angle.
Levi's501(66chain)_back pocket (back)

back pocket (back)

It is stitched with chain stitching, and judging by the shrinkage rate written on the inside tag, it can be determined to be 66chain model.
Levi's501(66chain)_red tab

red tab

In the small e double-sided embroidery tab, the "V" is an unequal V. 
Levi's501(66chain)_bar tack

bar tack

It has black bar tacks finish.
Levi's501(66chain)_top button

top button

The type that has a lot of pots and pockets. The side of the top button is parallel stitching.
Levi's501(66chain)_front button

front button

Three, except for the top button. It's no different from the later models.
Levi's501(66chain)_fly button

fly button

Button that is not a foot-long R with a pitter-patter.
Levi's501(66chain)_top button (back)

top button (back)

Engraved with a "6". The top of the waist belt is chain stitched.
Levi's501(66chain)_rivet

rivet

Copper-plated iron rivets. It's no different from the later models.
Levi's501(66chain)_rivet (back)

rivet (back)

Aluminum rivet backing
Levi's501(66chain)_coin pocket

coin pocket

Coin pockets are used vertically and the other cloth is used horizontally. The back of the coin pocket is chain stitched.
Levi's501(66chain)_outseam, selvedge

outseam, selvedge

It is sewn with chain stitch.
Levi's501(66chain)_アウトシーム

outseam

It is sewn with chain stitch.
Levi's501(66chain)_fabric

fabric

You can see a slight vertical drop. Even if you actually look at it, it's hard to distinguish it from the 66single model. It's very natural and I personally like it.

size waist
seat front rise back rise thigh inseam opening total length
W28/L36 27 40 10.5 13 10.5 29.5 7.5 39