There is a flat horizontal line at the bottom. Atop is a small circle near the center but a bit closer to the left end of the line. Above the circle is a long L shaped line titled where the corner of the L is to the right of the circle. Instead of ending directly vertical there is an extra smaller line that hooks off the top towards the left.
This is a Trolley icon. We've made it in iOS style
, first introduced in iOS version 7 and supported in all later releases up until now (at least iOS 11). This style is based on thin two-pixel lines and is optimized for 50x50 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 13,700 icons, all in the same style and quality.