A vein from the leg is removed and grafted to the coronary artery to bypass a blockage. Coronary artery bypass surgery during mobilization (freeing) of the right coronary artery from its surrounding tissue, adipose tissue (yellow). The tube visible at the bottom is the aortic cannula (returns blood from the HLM).
The average yearly income in 1930 was $1,368. With a 40 hour work  week that is an average of about 65 cents per hour.1368 per annum. Keep in mind two things: there were almost no taxes back then, and unimployment was high, so this is an average of the mostly white collar workforce.
Total spending on public works in 1930 exceeded $4 billion. Hoover tried to help by pressuring business leaders to keep wages high when economic conditions dictated that they fall. Professor Lee E. Ohanian calculates that this accounts for as much as 2/3 of the unemployment in the first years of the Great Depression.