An arrangement comprising an endoscope and an elevator attachment attachable to and detachable from the endoscope wherein the endoscope includes an inclined surface inclined relative to a longitudinal direction of an insertion part , an elevator recess having a first inner wall and a second inner wall that faces the first inner wall and being opened toward the inclined surface , and a lever pivotally provided inside the elevator recess , the elevator attachment comprising: a holding body including an inclined surface plate covering a part of the inclined surface , a first plate raising from an edge of the inclined surface plate and to be located along the first inner wall and a second plate abutting against the second inner wall ; and an elevator pivotally supported between the first plate and the second plate and including a lever connection part to be connected to the lever , characterized in that the arrangement further comprises a first jig , the elevator attachment being supplied in such a manner as to be attached to the first jig wherein the first jig includes a first abutting portion abutting against the inclined surface plate , an elastic plate projecting from the first abutting portion toward a space between the first plate and the second plate , and a first retention projection projecting from an edge of the elastic plate toward the first plate and abutting against an edge surface of the first plate . an inclined surface inclined relative to a longitudinal direction of an insertion part , an elevator recess having a first inner wall and a second inner wall that faces the first inner wall and being opened toward the inclined surface , and a lever pivotally provided inside the elevator recess , the elevator attachment comprising: a holding body including an inclined surface plate covering a part of the inclined surface , a first plate raising from an edge of the inclined surface plate and to be located along the first inner wall and a second plate abutting against the second inner wall ; and an elevator pivotally supported between the first plate and the second plate and including a lever connection part to be connected to the lever , characterized in that the arrangement further comprises a first jig , the elevator attachment being supplied in such a manner as to be attached to the first jig wherein the first jig includes a first abutting portion abutting against the inclined surface plate , an elastic plate projecting from the first abutting portion toward a space between the first plate and the second plate , and a first retention projection projecting from an edge of the elastic plate toward the first plate and abutting against an edge surface of the first plate . a holding body including an inclined surface plate covering a part of the inclined surface , a first plate raising from an edge of the inclined surface plate and to be located along the first inner wall and a second plate abutting against the second inner wall ; and an elevator pivotally supported between the first plate and the second plate and including a lever connection part to be connected to the lever , characterized in that the arrangement further comprises a first jig , the elevator attachment being supplied in such a manner as to be attached to the first jig wherein the first jig includes a first abutting portion abutting against the inclined surface plate , an elastic plate projecting from the first abutting portion toward a space between the first plate and the second plate , and a first retention projection projecting from an edge of the elastic plate toward the first plate and abutting against an edge surface of the first plate . <EOS>