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.