You roll over the measuring cup on its axel so that the bowl tips over to pour the measure into the container, going bottoms up. Once the bowl swings back, you can continue to measure out the next ingredient.The jigger comes in beautiful condition and with its original patina, but could be polished up easily if so desired. I'll leave that up to its new owner. The box is in very good condition for its age also with only some minor wear and paper loss throughout, but no damage to the cardboard.
Bar shaker shown in last picture is not included in this listing and is pictured just to show scale. The item "Napier Silver Plated Bottoms Up Rollover Cocktail Jigger 2oz Art Deco with Box USA" is in sale since Sunday, July 11, 2021. This item is in the category "Collectibles\Kitchen & Home\Barware\Cocktail Shakers & Bar Sets"." and is located in Vista, California. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Chile, Colombia, Costa rica, Dominican republic, Panama, Trinidad and tobago, Guatemala, El salvador, Honduras, Jamaica, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Uruguay, Russian federation.