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1910-1919 #374-546
1917-19 Flat Plate Printing - no watermark #498-518

1917-19 Flat Plate Printing - no watermark #498-518

The Experiment Continues
While Perf. 12 made stamp sheets and coil rolls too brittle, the adoption of Perf. 10 caused the opposite problem -- Perf. 10 stamps were difficult to separate, often resulting in torn, ragged perforations. The Post Office decided to try Perf. 11 as a compromise.

-33%
OLD U.S. PLATE STRIP

Regularly $7.50 Special $5.00

Wish List OLD U.S. PLATE STRIP 65718

# 498 - 1¢ Washington - green

mint
$0.90

Wish List # 498 - 1¢ Washington: mint 47252 54456

used
$0.25

Wish List # 498 - 1¢ Washington: used 50817 54456

# 499 - 2¢ Washington - rose Type I

mint
$0.90

Wish List # 499 - 2¢ Washington: mint 47253 54457

used
$0.25

Wish List # 499 - 2¢ Washington: used 50818 54457

# 500 - 2¢ Washington - deep rose (Ia)

mint
$320.00

Wish List # 500 - 2¢ Washington: mint 47254 54458

used
$250.00

Wish List # 500 - 2¢ Washington: used 50819 54458

# 501 - 3¢ Washington - violet Type I

mint
$20.00

Wish List # 501 - 3¢ Washington: mint 47255 54459

used
$0.40

Wish List # 501 - 3¢ Washington: used 50820 54459

# 502 - 3¢ Washington - violet Type II

mint
$24.00

Wish List # 502 - 3¢ Washington: mint 47256 54460

used
$1.25

Wish List # 502 - 3¢ Washington: used 50821 54460

# 503 - 4¢ Washington - brown

mint
$15.00

Wish List # 503 - 4¢ Washington: mint 47257 54461

used
$0.60

Wish List # 503 - 4¢ Washington: used 50822 54461

# 504 - 5¢ Washington - blue

mint
$12.50

Wish List # 504 - 5¢ Washington: mint 47258 54462

used
$0.40

Wish List # 504 - 5¢ Washington: used 50823 54462

# 505 - 5¢ Washington - rose ERROR

mint
$595.00

Wish List # 505 - 5¢ Washington: mint 47259 54463

# 506 - 6¢ Washington - red orange

mint
$17.50

Wish List # 506 - 6¢ Washington: mint 47260 54464

used
$0.50

Wish List # 506 - 6¢ Washington: used 50824 54464

# 507 - 7¢ Washington - black

mint
$34.00

Wish List # 507 - 7¢ Washington: mint 47261 54465

used
$1.75

Wish List # 507 - 7¢ Washington: used 50825 54465

# 508 - 8¢ Franklin - olive bistre

mint
$20.00

Wish List # 508 - 8¢ Franklin: mint 47262 54466

used
$1.00

Wish List # 508 - 8¢ Franklin: used 50826 54466

# 509 - 9¢ Franklin - salmon red

mint
$20.00

Wish List # 509 - 9¢ Franklin: mint 47263 54467

used
$3.00

Wish List # 509 - 9¢ Franklin: used 50827 54467

# 510 - 10¢ Franklin - orange yellow

mint
$25.00

Wish List # 510 - 10¢ Franklin: mint 47264 54468

used
$0.30

Wish List # 510 - 10¢ Franklin: used 50828 54468

# 511 - 11¢ Franklin - light green

mint
$16.00

Wish List # 511 - 11¢ Franklin: mint 47265 54469

used
$4.00

Wish List # 511 - 11¢ Franklin: used 50829 54469

# 512 - 12¢ Franklin - claret brown

mint
$16.00

Wish List # 512 - 12¢ Franklin: mint 47266 54470

used
$0.75

Wish List # 512 - 12¢ Franklin: used 50830 54470

# 513 - 13¢ Franklin - apple green

mint
$19.50

Wish List # 513 - 13¢ Franklin: mint 47267 54471

used
$9.00

Wish List # 513 - 13¢ Franklin: used 50831 54471

# 514 - 15¢ Franklin - gray

mint
$55.00

Wish List # 514 - 15¢ Franklin: mint 47268 54472

used
$1.75

Wish List # 514 - 15¢ Franklin: used 50832 54472

# 515 - 20¢ Franklin - ultramarine

mint
$62.00

Wish List # 515 - 20¢ Franklin: mint 47269 54473

used
$0.60

Wish List # 515 - 20¢ Franklin: used 50833 54473

# 516 - 30¢ Franklin - orange red

mint
$49.00

Wish List # 516 - 30¢ Franklin: mint 47270 54474

used
$1.75

Wish List # 516 - 30¢ Franklin: used 50834 54474