Mine is Raptar, not a pro Raptor, use it when enlarging 4X5 to 5X7, seems to be sharp corner to corner at F11.
From the Big List of Enlarger lens
Wollensak Enlarging Raptar 4.5/2"-12" 4-3 Tessar 50° N[pc] 1950's A generic description of the Enlarging Raptar lenses [pc][36]
Wollensak Enlarging Raptar 4.5/2"(50mm) 4-3[36] Tessar[36] 1 1/4"x1 5/8"
[47] N[pc] 1950's Coated[47] [pc][36][47]
Wollensak Enlarging Raptar 4.5/3"(75mm) 4-3[36] Tessar[36] 2 1/4"x2 1/4"
[47] N[pc] 1950's Coated[47] [pc][36][47]
Wollensak Enlarging Raptar 4.5/3 1/2"(90mm) 4-3[36] Tessar[36] 2 1/4"x3 1/4"
[47] N[pc] 1950's Coated[47] [pc][36][47]
Wollensak Enlarging Raptar 4.5/4"(101mm) 4-3[36] Tessar[36] 2 1/4"x3 1/4"
[47] N[pc] 1950's Coated[47] [pc][36][47]
Wollensak Enlarging Raptar 4.5/5"(127mm) 4-3[36] Tessar[36] 3 1/4"x4 1/4"
[47] N[pc] 1950's Coated[47] [pc][36][47]
Wollensak Enlarging Raptar 4.5/5 5/16"(135mm) 4-3[36] Tessar[36] 4"x5"[47] N[pc] 1950's Coated[47] [pc][36][47]
Wollensak Enlarging Raptar 4.5/6 3/8"(162mm) 4-3[36] Tessar[36] 4"x5"[47] N[pc] 1950's Coated[47] [pc][36][47]
Wollensak Enlarging Raptar 4.5/7 1/2"(190mm) 4-3[36] Tessar[36] 5"x7"[47] N[pc] 1950's Coated[47] [pc][36][47]
Wollensak Enlarging Raptar 4.5/8 1/4"(210mm) 4-3[36] Tessar[36] 5"x8"[47] N[pc] 1950's Coated[47] [pc][36][47]
Wollensak Enlarging Raptar 4.5/9 1/2"(241mm) 4-3[36] Tessar[36] 6 1/2x8 1/2"
[47] N[pc] 1950's Coated[47] [pc][36][47]
Wollensak Enlarging Raptar 4.5/11 7/8"(302mm) 4-3[36] Tessar[36] 8x10"[48] N[pc] 1950's Coated[48] [pc][36][48]
Wollensak Graphic Raptar 4.5/3"(74mm) N 9 Coated[pc]
Possibly identical to Enlarging Raptar[tbc] [pc]
Wollensak Graphic Raptar 4.5/3 1/2"(90mm) N 9 Coated[pc]
Possibly identical to Enlarging Raptar[tbc] [pc]
Wollensak Graphic Raptar 4.5/7 1/2"(192mm) N Coated[pc]
Possibly identical to Enlarging Raptar[tbc] [pc]
Wollensak Enlarging PRO Raptar 4.5/3 1/2"
(90mm) 4.5, 5.6 ,8 ,11 ,16 ,22 ,32[pc] 6-4 Plasmat N[pc] 1950/60's Coated[47] [pc][12][47]
Wollensak Enlarging PRO Raptar 5.6/4"(101mm) 5.6 ,8 ,11 ,16 ,22 ,32[pc] 6-4 Plasmat N[pc] 1950/60's Coated[47] [pc][12][47]
Wollensak Enlarging PRO Raptar 5.6/4 1/2"
(114mm) 5.6 ,8 ,11 ,16 ,22 ,32[pc] 6-4 Plasmat N[pc] 1950/60's Coated[47] [pc][12][47]
Wollensak Enlarging PRO Raptar 5.6/6 3/8"
(162mm) [46] 5.6 ,8 ,11 ,16 ,22 ,32[46] 6-4[12] Plasmat[12] N[46] 1950/60's Coated[47] [12][46][47]
Wollensak Enlarging PRO Raptar 5.6/7 1/2"
(190mm)[39] 5.6 ,8 ,11 ,16 ,22 ,32[39] 6-4[12] Plasmat[12]