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Keywords from Image Description:
ChrstelenbachBridgeGotthardbahnInAmstegTributaryToReuss. en original Chrstelenbach Bridge at km of the Gotthardbahn spanning the Maderanertal in Amsteg also showing later reinforcements of the bridge en original Kerstelenbach Bridge at km of the Gotthardbahn spanning the Maderanertal in Amsteg also showing later reinforcements