Sorry for the delay in replying to your request.
FIRST: what color is your oil tank and tool / battery box?
If the paint is BLACK, the decals
will be GOLD.
If the paint color is dark metallic SILVER-GREY, the decals
will be BLACK.
All Bonnevilles built 1959-1965 had the same particular "Bonneville 120" decal
was slightly changed 1966-67, changed again 1968, still again 1969-70.)
The BOTTOM of the "Bonneville 120" decal
will be placed about one inch above the horizontal center line of the mounting screw, and the zero of "120" will be directly above the vertical center line of that mounting screw.
Thus, "Bonneville 120" is located slightly forward of the center of the lid.
OIL TANK decals
I will describe as best I can:
Your tank should not be missing the trim valance between actual tank and the frame for this to be correct.
The "valance" is the piece of sheet metal with the slot that the top mount of the tank peeks through.
"IMPORTANT Drain Oil and Refill" decal
is on the valance itself, with it's BOTTOM border line next to the seam,
and the center line of the decal
should line up with the center line of the slot for the front top mount of the tank
If you look at the tank from the SIDE, you would be able to read this decal
The "USE ONLY" decal
listing recommended oils is also placed on the valance. It's placed with it's LEFT border line by the same tank / valance seam, and it's top border line sits about 1/16 of an inch below the right-side line of the "IMPORTANT" decal
will be read by looking at it from the FRONT of the bike, looking toward the rear.
For 1962 models, the proper decal
will read as follows (same decal
wording used 1961 - 1968)
B.P. ENERGOL, SHELL,
OR REGENT HAVOLINE
REFER TO HANDBOOK FOR
The "MINIMUM OIL LEVEL" decal
on the side of the tank should be located with the bottom line of the decal
about half-way down the side of the tank. A common mistake is to locate it too high.
Again, the oil tank decals
will all be the same color as the "Bonneville 120" decal
on the tool box lid.
I will add to this, the location of the "MADE IN ENGLAND" decal
on top of the fuel tank.
is in GOLD ink (why it's not "black," who knows?)
is directly across the tank from the center of the filler neck, with the right end of the decal
about 1/4 inch away from the center seam. Photos of original-paint tanks show the factory placed it TOO CLOSE to the seam, and
the letter "D" in "ENGLAND" was covered by the rubber strap by which the tank was mounted.
Correct this if you wish, but that's the way they originally looked.
I hope this information is of help. Best of wishes for a successful restoration.